Boat mooring device



FIG. 1 is a downward side perspective view of the boat mooring device with the ends tethered;

FIG. 2 is an downward straight perspective view of FIG. 1;

FIG. 3 is an elevational view of FIG. 1 without the ends tethered; and,

FIG. 4 is a side perspective view of FIG. 2 without the ends tethered.

The broken lines represent portions of the design that form no part of the claim. 

I claim the ornamental design for a boat mooring device, as shown and described. 